police say she used a hammer to kill her co-worker jayna murray, and had no accomplice. investigators are looking through surveillance video and telephone records. >>> the indicted states and its allies are patrolling a no-fly zone in libya after announcing a no-fly zone. muammar gaddafi vows vengeance. the purpose of the mission is not to remove gaddafi but to cripple his troops. >> it is being called a massive and impressive display of firepower, one so forceful that many question whether it can be contained to simply a humanitarian mission. by 3:00 eastern libya announced tripoli was once again under attack. gaddafi tried to strike back, but the anti-aircraft guns are no match for the attack force. this is because of the un resolution to protect lives and not to end the regime. >> we're going to stick to the mandate. >> the joint chiefs chairman appeared on the sunday news shows to say this is strictly a humanitarian mission. he does -- that was emphasized by the u.s. commander in africa. >> our actions are focused on extending the no-fly zones half -- southward and t